Phase diagram and entropic interaction parameter of athermal all‐polymer nanocomposites

2008 ◽  
Vol 19 (7) ◽  
pp. 756-761 ◽  
Author(s):  
Alaitz Ruiz de Luzuriaga ◽  
Agustín Etxeberria ◽  
Javier Rodríguez ◽  
José A. Pomposo
Keyword(s):  
Phase Diagram ◽  
Polymer Nanocomposites ◽  
Interaction Parameter

scholarly journals Phase Diagram of Binary Alloy Nanoparticles under High Pressure

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2929
Author(s):  
Han Gyeol Kim ◽  
Joonho Lee ◽  
Guy Makov
Keyword(s):  
Phase Diagram ◽  
Phase Diagrams ◽  
Interaction Parameter ◽  
Excess Volume ◽  
Eutectic Temperature ◽  
Calphad Method ◽  
Alloy Nanoparticles ◽  
Thermodynamic Conditions ◽  
Nanoparticle System ◽  
Pressure Phase

CALPHAD (CALculation of PHAse Diagram) is a useful tool to construct phase diagrams of various materials under different thermodynamic conditions. Researchers have extended the use of the CALPHAD method to nanophase diagrams and pressure phase diagrams. In this study, the phase diagram of an arbitrary A–B nanoparticle system under pressure was investigated. The effects of the interaction parameter and excess volume were investigated with increasing pressure. The eutectic temperature was found to decrease in most cases, except when the interaction parameter in the liquid was zero and that in the solid was positive, while the excess volume parameter of the liquid was positive. Under these conditions, the eutectic temperature increased with increasing pressure.

scholarly journals Investigations on the Phase Diagram and Interaction Parameter of Poly(styrene-b-1,3-cyclohexadiene) Copolymers

2017 ◽  
Vol 50 (6) ◽  
pp. 2354-2363 ◽  
Author(s):  
Konstantinos Misichronis ◽  
Jihua Chen ◽  
Adam Imel ◽  
Rajeev Kumar ◽  
James Thostenson ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Interaction Parameter

scholarly journals Quantification of the liquid window of deep eutectic solvents

2018 ◽  
Vol 54 (95) ◽  
pp. 13351-13354 ◽  
Author(s):  
Laura J. B. M. Kollau ◽  
Mark Vis ◽  
Adriaan van den Bruinhorst ◽  
A. Catarina C. Esteves ◽  
Remco Tuinier
Keyword(s):  
Phase Diagram ◽  
Interaction Parameter ◽  
Eutectic Temperature ◽  
Deep Eutectic Solvents ◽  
Eutectic Phase ◽  
Eutectic Phase Diagram

The non-ideality of the eutectic phase diagram is quantified using a single interaction parameter that could be determined directly from the experimental eutectic temperature of the mixture.

scholarly journals A Theoretical Investigation of Polymer-Nanoparticles as Miscibility Improvers in All-Polymer Nanocomposites

2008 ◽  
Vol 2 ◽  
pp. 105-114 ◽  
Author(s):  
Alaitz Ruiz de Luzuriaga ◽  
Hans Grande ◽  
Jose A. Pomposo
Keyword(s):  
Phase Diagram ◽  
Molecular Weight ◽  
Polymer Nanocomposites ◽  
Volume Fraction ◽  
Mean Field ◽  
Solution Temperature ◽  
Experimental Phase Diagram ◽  
Vinyl Methyl Ether ◽  
Linear Poly ◽  
Nanoscale Effect

The miscibility behaviour of polymer-nanoparticle / linear-polymer blends (all-polymer nanocomposites) has been investigated using an incompressible mean-field theoretical model that accounts for combinatorial, temperature-dependent exchange interaction energy and nanoparticle-driven effects. The theory is employed to predict the phase diagram of poly(styrene)-nanoparticle (PS-np) / linear-poly(vinyl methyl ether) (PVME) nanocomposites from room temperature to 675 K. Complete miscibility is predicted for PS-nanoparticles with radius < 6 nm blended with PVME (molecular weight 62 500 g/mol, nanoparticle volume fraction 20 %). The effect of PVME molecular weight and blend composition on the miscibility diagram is also addressed. When compared to the well-known experimental phase diagram of linear-PS / PVME blends displaying lower critical solution temperature (LCST) behaviour, the miscibility improving effect of sub-10 nm PS-nanoparticles is clearly highlighted. In terms of the model, this favourable nanoscale effect arises mainly from the reduced stretching induced by the sub-10 nm nanoparticles and the increased exothermic contacts when compared to nanoparticles with sizes > 10 nm.

Predicting the Formation and Stability of Amorphous Small Molecule Binary Mixtures from Computationally Determined Flory−Huggins Interaction Parameter and Phase Diagram

2010 ◽  
Vol 7 (3) ◽  
pp. 795-804 ◽  
Author(s):  
Katja Pajula ◽  
Markku Taskinen ◽  
Vesa-Pekka Lehto ◽  
Jarkko Ketolainen ◽  
Ossi Korhonen
Keyword(s):  
Phase Diagram ◽  
Binary Mixtures ◽  
Interaction Parameter ◽  
Small Molecule

Phase diagram of bare particles in polymer nanocomposites: Uniting solution and melt blending

Polymer ◽  
2021 ◽  
pp. 124033
Author(s):  
Petr Lepcio ◽  
František Ondreáš ◽  
Klára Zárybnická ◽  
Marek Zbončák ◽  
Juraj Svatík ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Polymer Nanocomposites ◽  
Melt Blending

New developments in the ab initio determination of transition metal alloys phase diagram

1993 ◽  
Vol 90 ◽  
pp. 249-254 ◽  
Author(s):  
C Wolverton ◽  
M Asta ◽  
S Ouannasser ◽  
H Dreyssé ◽  
D de Fontaine
Keyword(s):  
Phase Diagram ◽  
Transition Metal ◽  
Ab Initio ◽  
Metal Alloys ◽  
New Developments ◽  
Transition Metal Alloys
Sign in / Sign up

Export Citation Format

Share Document